Bill,
My son dropped mine while mountain climbing and the left back part of the tube
was broken off. Prism was also cracked and the lens scratched. He was not a
Leica person and took them to the local Leica dealer in San Antonio. They
were sent in and the reply came back to expensive to repair and he bought me a
new pair. These 10x20 were several years old and of the green variety. I
don't whether they were collectable or not..
Good luck,
Clifton